Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to San Juan from £344

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to San Juan departing on 29/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from London Heathrow Airport to San Juan

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to San Juan.
Icelandair Logo
08:15 - 21:18LHR-SJU
18h 03m1 stop
Icelandair Logo
13:15 - 09:30SJU-LHR
15h 15m1 stop
£501Icelandair
Find Deal
Tue, 9 Sep - Wed, 24 Sep
JetBlue Logo
08:15 - 21:18LHR-SJU
18h 03m1 stop
JetBlue Logo
11:30 - 09:30SJU-LHR
17h 00m1 stop
£509JetBlue
Find Deal
Tue, 23 Sep - Thu, 2 Oct
Iberia Logo
06:30 - 18:30LHR-SJU
17h 00m2 stops
Iberia Logo
13:55 - 10:35SJU-LHR
15h 40m1 stop
£546Iberia
Find Deal
Wed, 3 Sep - Thu, 18 Sep
Iberia Logo
11:30 - 11:15LHR-SJU
28h 45m2 stops
Iberia Logo
16:55 - 17:15SJU-LHR
19h 20m1 stop
£579Iberia
Find Deal
Sat, 20 Sep - Tue, 30 Sep
 Logo
19:40 - 09:58LHR-SJU
19h 18m1 stop
 Logo
21:30 - 19:45SJU-LHR
17h 15m1 stop
Sat, 7 Jun - Sat, 14 Jun
 Logo
07:25 - 10:45LHR-SJU
32h 20m2 stops
 Logo
01:27 - 14:40SJU-LHR
32h 13m3 stops
Sat, 7 Jun - Fri, 13 Jun
Lufthansa Logo
06:30 - 23:57LHR-SJU
22h 27m2 stops
Lufthansa Logo
13:30 - 07:15SJU-LHR
12h 45m1 stop
£828Lufthansa
Find Deal
Sat, 20 Sep - Mon, 29 Sep
Lufthansa Logo
08:30 - 20:38LHR-SJU
41h 08m2 stops
Lufthansa Logo
07:00 - 11:35SJU-LHR
23h 35m1 stop
£832Lufthansa
Find Deal
Mon, 22 Sep - Tue, 30 Sep
British Airways Logo
10:50 - 18:50LHR-SJU
13h 00m1 stop
British Airways Logo
13:30 - 09:00SJU-LHR
14h 30m1 stop
£839British Airways
Find Deal
Tue, 6 May - Tue, 13 May
British Airways Logo
10:05 - 22:55LHR-SJU
17h 50m1 stop
British Airways Logo
14:05 - 09:25SJU-LHR
14h 20m1 stop
£892British Airways
Find Deal
Thu, 3 Jul - Tue, 12 Aug

Icelandair flights from London Heathrow Airport to San Juan

Our best Icelandair deals on London Heathrow Airport to San Juan flight tickets
Icelandair
9 Sept
LHR08:15London Heathrow
18h 03m
1 stop
SJU21:18San Juan Luis Munoz Marin Intl
24 Sept
SJU13:15San Juan Luis Munoz Marin Intl
15h 15m
1 stop
LHR09:30London Heathrow
Icelandair
15 Sept
LHR08:15London Heathrow
18h 03m
1 stop
SJU21:18San Juan Luis Munoz Marin Intl
22 Sept
SJU13:15San Juan Luis Munoz Marin Intl
15h 15m
1 stop
LHR09:30London Heathrow
Icelandair
3 Sept
LHR08:15London Heathrow
36h 45m
2 stops
SJU16:00San Juan Luis Munoz Marin Intl
17 Sept
SJU03:15San Juan Luis Munoz Marin Intl
12h 30m
1 stop
LHR20:45London Heathrow

Iberia flights from London Heathrow Airport to San Juan

Our best Iberia deals on London Heathrow Airport to San Juan flight tickets
Iberia
3 Sept
LHR06:30London Heathrow
17h 00m
2 stops
SJU18:30San Juan Luis Munoz Marin Intl
18 Sept
SJU13:55San Juan Luis Munoz Marin Intl
15h 40m
1 stop
LHR10:35London Heathrow
Iberia
20 Sept
LHR11:30London Heathrow
28h 45m
2 stops
SJU11:15San Juan Luis Munoz Marin Intl
30 Sept
SJU16:55San Juan Luis Munoz Marin Intl
19h 20m
1 stop
LHR17:15London Heathrow
Iberia
5 Jul
LHR19:10London Heathrow
24h 55m
1 stop
SJU15:05San Juan Luis Munoz Marin Intl
14 Jul
SJU13:37San Juan Luis Munoz Marin Intl
14h 48m
1 stop
LHR09:25London Heathrow

See travel insights to San Juan from

How to get the cheapest flight ticket from London Heathrow Airport to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan?

The cheapest month to fly to San Juan from London Heathrow Airport is in September. Flight prices, which tend to average around £494, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to San Juan from London Heathrow Airport during February instead. Flights to San Juan in February, while not as cheap as those in September, still average around £557.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart on your flight to San Juan is on a Monday when prices can be found for as low as £535. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around £652.

What is the cheapest time of day to depart on your flight to San Juan?

In the morning is the cheapest time of day to fly from London Heathrow Airport to San Juan when you can find flight prices for as low as £591. Flying to San Juan in the morning is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive, with an average ticket price of £845.

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from London Heathrow Airport when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around £638 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from London Heathrow Airport for as low as £544 on momondo.

Cheap London Heathrow Airport to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to San Juan

Best price found

£344

Fastest flight time

12h 00m

Direct flights

None

Airports in San Juan

1 airport
The best one-way flight to San Juan from London Heathrow Airport in the past 72 hours is £344. The best return flight deal from London Heathrow Airport to San Juan found on momondo in the last 72 hours is £501.
The fastest flight from London Heathrow Airport to San Juan takes 12h 00m
There are no direct flights from London Heathrow Airport to San Juan. Popular non-direct route for this connection is London Heathrow Airport - San Juan Luis Munoz Marin Intl Airport.
There is 1 airport near San Juan: San Juan Luis Munoz Marin Intl (SJU)

  • How far is London Heathrow to San Juan by plane?

    The distance between London Heathrow and San Juan is about 4182.0 mi. A reasonable flight in good conditions will take 12h 00m.

  • When did momondo last update prices for flights from London Heathrow Airport to San Juan?

    Prices for flights from London Heathrow Airport to San Juan are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to San Juan?

  • How old do you have to be to fly from London Heathrow Airport to San Juan?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The required travel and health documents for your San Juan trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Best airlines flying from London Heathrow Airport to San Juan

Compare and see reviews for airlines that fly from London Heathrow Airport to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FinnairPriceFrom £423Free CancellationRating
7.6
1,272 reviews
Search Finnair flights
JetBluePriceFrom £442Free CancellationRating
7.3
2,924 reviews
Search JetBlue flights
IcelandairPriceFrom £454Free CancellationRating
7.0
484 reviews
Search Icelandair flights
IberiaPriceFrom £510Free CancellationRating
7.0
2,686 reviews
Search Iberia flights
British AirwaysPriceFrom £566Free CancellationRating
6.6
6,809 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £852Free CancellationRating
7.4
642 reviews
Search Virgin Atlantic flights

Why use momondo?

Why should I use momondo to find a flight deal from London to San Juan?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from London.

Can I find flights from London to San Juan with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to San Juan flights to just show those with flexible booking policies.

How can momondo help me find flights from London to San Juan?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to San Juan.

I’m not ready to book a flight from London to San Juan right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


An easier way to manage your San Juan trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Wed 30/4
Wed 7/5

Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan